Preparation and stabilization of fluoropolymer dispersions

US7678859B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Peter Bissinger · Dießen, DE
• Michael C. Dadalas · Eggenfelden, DE
• Klaus Hintzer · Woodbury, US
• Ludwig Mayer · San Jose, US
• Werner Schwertfeger · Altötting, DE
• Tilman C. Zipplies · Burghausen, DE

Key dates

• Filing date: Sep 14, 2006
• Grant date: Mar 16, 2010
• Expiry date: Jun 20, 2027

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F14/18
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Provided is a method comprising polymerizing at least one fluorinated monomer in an aqueous emulsion polymerization in the presence of a carbosilane surfactant having at least one hydrophobic part, wherein the hydrophobic part has at least one silicon atom, and having at least one hydrophilic part, with the proviso that the carbosilane contains no Si—O bonds.